Home / 70,021.20-96,628.68-38,190.96

Finding the Fourth Proportional to 70,021.20, 96,628.68 and 38,190.96

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Solution

The fourth proportional to 70,021.20, 96,628.68 and 38,190.96 is: 52,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,021.20 : 96,628.68 = 38,190.96 : x
  2. Step 2: Convert to fraction form
    70,021.20/96,628.68 = 38,190.96/x
  3. Step 3: Cross multiply
    70,021.20x = 96,628.68 × 38,190.96
  4. Step 4: Simplify right side
    70,021.20x = 3,690,342,052.73
  5. Step 5: Solve for x
    x = 3,690,342,052.73/70,021.20
  6. Step 6: Final answer
    x = 52,703.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.